revert line number change

Author: KevinRK29

mypy/messages.py

@@ -44,7 +44,6 @@
     ArgKind,
     CallExpr,
     Context,
-    Decorator,
     Expression,
     FuncDef,
     IndexExpr,
@@ -1150,14 +1149,6 @@ def no_variant_matches_arguments(
 
                 msg = f'Unexpected keyword argument "{kwarg_name}"' + for_func
 
-                if matching_variant is not None and matching_variant.definition is not None:
-                    defn = matching_variant.definition
-                    if isinstance(defn, Decorator):
-                        func_line = defn.func.line
-                    else:
-                        func_line = defn.line
-                    msg += f" defined on line {func_line}"
-
                 if matches:
                     msg += f"; did you mean {pretty_seq(matches, 'or')}?"
                 self.fail(msg, context, code=code)

test-data/unit/check-expressions.test

@@ -2595,7 +2595,7 @@ def f(foobar: str) -> None: ...
 def f(foobar: Union[int, str]) -> None:
     pass
 
-f(fobar=1) # E: Unexpected keyword argument "fobar" for overloaded function "f" defined on line 4; did you mean "foobar"?
+f(fobar=1) # E: Unexpected keyword argument "fobar" for overloaded function "f"; did you mean "foobar"?
 f(random=[1,2,3]) # E: Unexpected keyword argument "random" for overloaded function "f" \
                   # N: Possible overload variants: \
                   # N:     def f(foobar: int) -> None \